An 8.7 hour trip is made at an average speed of 73 kmhr. if, Ask an Expert

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Q. An 8.7 hour trip is made at an average speed of 73 km/hr. If the first third of the trip (chronologically) was driven at 96.5 km/hr, what was the average speed for the rest of journey?

Q. A point source of light is 35 cm below the surface of a body of water. Find out the diameter of the circle at the surface through, which light emerges from the water. Water has an index of refraction of 1.333.

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Category:- Physics
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